PDF Publication Title:
Text from PDF Page: 181
Konstantinos G. Kyprianidis Assessment of core technologies and concepts raising T4 at cruise by as much as 200 [K], while using the variable geometry to control the engine thrust can result in an SFC benefit of more than 2% (black continuous lines). This SFC reduction, at constant specific thrust (and hence approximately constant propulsive efficiency), comes from the improvement of the engine’s thermal efficiency. A short discussion on the effect of elevated cruise temperatures on HPT life is given in the NOx emissions assessment section. It can also be observed in Fig. 6.10 that running the exact same engine design without utilising the variable geometry results in a significantly less efficient operation of the engine (red dotted line). A re-optimised cycle at constant specific thrust - considering cruise SFC as well as engine weight - could help reduce the SFC deficit, but the benefits from higher cruise T4 levels are still evident; the optimum thrust for aircraft-engine matching tends to lie very close to the right hand side of the SFC loop. This makes variable geometry a key factor to a performance optimised intercooled recuperated aero engine; essentially the cycle can be optimised for cruise SFC by reducing the LPT inlet area (i.e. LPT capacity) at these conditions, while a sufficient level of thrust can be maintained at top of climb by opening up the turbine nozzles. For the same TOC design point, reducing the LPT inlet area by 20% at mid- cruise, while maintaining a constant thrust, has the following major off-design performance effects: 1. T4 increases by as much as 200 [K] in order to maintain constant thrust. 2. HPT blade metal temperature increases by more than 130 [K], but is still cooler than the TOC metal temperature. 3. BPR increases significantly at a nearly constant fan mass flow and pressure ratio. 4. IPC corrected mass flow and pressure ratio drops. 5. IC mass flow ratio (Wcold/Whot) and hence effectiveness increase, but tem- perature change drops. 6. HPC corrected mass flow and pressure ratio increases. 7. OPR reduces. 141PDF Image | Multi-disciplinary conceptual design of future jet engine systems
PDF Search Title:
Multi-disciplinary conceptual design of future jet engine systemsOriginal File Name Searched:
thesis-future-jet-engines.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)